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The original text mistakenly referred to `tasklet_vec` and `tasklet_hi_vec` as arrays. In reality, they are implemented as per-CPU linked lists for managing normal- and high-priority tasklets. This commit updates the description to reflect their correct structure. Reference: kernel/softirq.c Let me know if this should be filed as an issue first instead — happy to adjust accordingly. Co-authored-by: Cheng-Yang Chou <yphbchou0911@gmail.com> |
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Interrupts and Interrupt Handling
In the following posts, we will cover interrupts and exceptions handling in the Linux kernel.
- Interrupts and Interrupt Handling. Part 1. - describes interrupts and interrupt handling theory.
- Interrupts in the Linux Kernel - describes stuffs related to interrupts and exceptions handling from the early stage.
- Early interrupt handlers - describes early interrupt handlers.
- Interrupt handlers - describes first non-early interrupt handlers.
- Implementation of exception handlers - describes implementation of some exception handlers such as double fault, divide by zero etc.
- Handling non-maskable interrupts - describes handling of non-maskable interrupts and remaining interrupt handlers from the architecture-specific part.
- External hardware interrupts - describes early initialization of code which is related to handling external hardware interrupts.
- Non-early initialization of the IRQs - describes non-early initialization of code which is related to handling external hardware interrupts.
- Softirq, Tasklets and Workqueues - describes softirqs, tasklets and workqueues concepts.
- Last part - this is the last part of the
Interrupts and Interrupt Handlingchapter and here we will see a real hardware driver and some interrupts related stuff.